diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/ShoveGestureDetector.java')
-rw-r--r-- | platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/ShoveGestureDetector.java | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/ShoveGestureDetector.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/ShoveGestureDetector.java deleted file mode 100644 index 9396578e48..0000000000 --- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/ShoveGestureDetector.java +++ /dev/null @@ -1,214 +0,0 @@ -package com.almeros.android.multitouch.gesturedetectors; - -import android.content.Context; -import android.view.MotionEvent; - -/** - * @author Robert Nordan (robert.nordan@norkart.no) - * <p> - * Copyright (c) 2013, Norkart AS - * <p> - * All rights reserved. - * <p> - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * <p> - * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * <p> - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY - * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -public class ShoveGestureDetector extends TwoFingerGestureDetector { - - /** - * Listener which must be implemented which is used by ShoveGestureDetector - * to perform callbacks to any implementing class which is registered to a - * ShoveGestureDetector via the constructor. - * - * @see ShoveGestureDetector.SimpleOnShoveGestureListener - */ - public interface OnShoveGestureListener { - public boolean onShove(ShoveGestureDetector detector); - - public boolean onShoveBegin(ShoveGestureDetector detector); - - public void onShoveEnd(ShoveGestureDetector detector); - } - - /** - * Helper class which may be extended and where the methods may be - * implemented. This way it is not necessary to implement all methods of - * OnShoveGestureListener. - */ - public static class SimpleOnShoveGestureListener implements - OnShoveGestureListener { - public boolean onShove(ShoveGestureDetector detector) { - return false; - } - - public boolean onShoveBegin(ShoveGestureDetector detector) { - return true; - } - - public void onShoveEnd(ShoveGestureDetector detector) { - // Do nothing, overridden implementation may be used - } - } - - private float prevAverageY; - private float currAverageY; - - private final OnShoveGestureListener listener; - private boolean sloppyGesture; - - public ShoveGestureDetector(Context context, OnShoveGestureListener listener) { - super(context); - this.listener = listener; - } - - @Override - protected void handleStartProgressEvent(int actionCode, MotionEvent event) { - switch (actionCode) { - case MotionEvent.ACTION_POINTER_DOWN: - // At least the second finger is on screen now - - resetState(); // In case we missed an UP/CANCEL event - prevEvent = MotionEvent.obtain(event); - timeDelta = 0; - - updateStateByEvent(event); - - // See if we have a sloppy gesture - sloppyGesture = isSloppyGesture(event); - if (!sloppyGesture) { - // No, start gesture now - gestureInProgress = listener.onShoveBegin(this); - } - break; - - case MotionEvent.ACTION_MOVE: - if (!sloppyGesture) { - break; - } - - // See if we still have a sloppy gesture - sloppyGesture = isSloppyGesture(event); - if (!sloppyGesture) { - // No, start normal gesture now - gestureInProgress = listener.onShoveBegin(this); - } - - break; - - case MotionEvent.ACTION_POINTER_UP: - if (!sloppyGesture) { - break; - } - - break; - } - } - - @Override - protected void handleInProgressEvent(int actionCode, MotionEvent event) { - switch (actionCode) { - case MotionEvent.ACTION_POINTER_UP: - // Gesture ended but - updateStateByEvent(event); - - if (!sloppyGesture) { - listener.onShoveEnd(this); - } - - resetState(); - break; - - case MotionEvent.ACTION_CANCEL: - if (!sloppyGesture) { - listener.onShoveEnd(this); - } - - resetState(); - break; - - case MotionEvent.ACTION_MOVE: - updateStateByEvent(event); - - // Only accept the event if our relative pressure is within - // a certain limit. This can help filter shaky data as a - // finger is lifted. Also check that shove is meaningful. - if (currPressure / prevPressure > PRESSURE_THRESHOLD - && Math.abs(getShovePixelsDelta()) > 0.5f) { - final boolean updatePrevious = listener.onShove(this); - if (updatePrevious) { - prevEvent.recycle(); - prevEvent = MotionEvent.obtain(event); - } - } - break; - } - } - - @Override - protected void resetState() { - super.resetState(); - sloppyGesture = false; - prevAverageY = 0.0f; - currAverageY = 0.0f; - } - - @Override - protected void updateStateByEvent(MotionEvent curr) { - super.updateStateByEvent(curr); - - final MotionEvent prev = prevEvent; - float py0 = prev.getY(0); - float py1 = prev.getY(1); - prevAverageY = (py0 + py1) / 2.0f; - - float cy0 = curr.getY(0); - float cy1 = curr.getY(1); - currAverageY = (cy0 + cy1) / 2.0f; - } - - @Override - protected boolean isSloppyGesture(MotionEvent event) { - boolean sloppy = super.isSloppyGesture(event); - if (sloppy) { - return true; - } - - // If it's not traditionally sloppy, we check if the angle between - // fingers - // is acceptable. - double angle = Math.abs(Math.atan2(currFingerDiffY, currFingerDiffX)); - // about 20 degrees, left or right - return !((0.0f < angle && angle < 0.35f) || 2.79f < angle - && angle < Math.PI); - } - - /** - * Return the distance in pixels from the previous shove event to the - * current event. - * - * @return The current distance in pixels. - */ - public float getShovePixelsDelta() { - return currAverageY - prevAverageY; - } -} |